Database Develop

Battery life worse after FRF83

Ive noticed a significant decrease in battery life ever since i updated my phone to FRF83. I can leave it on at 100% and it drains down to 75% or even lower the following morning. It usually drains no more than 10% if i leave it running overnight.
I dont have any apps running in the background, and my task killer is set to auto kill 3 mins after screen blankout. Auto refresh is, and has always been on since the day i got the phone though.
I manually updated to FRF85B and the battery life is still as bad as ever. Ive never gotten this problem with android 2.1 or any of the earlier froyo builds. Someone care to tell me whats wrong? Ive heard others reporting that their battery life has increased after updating to froyo, why am i getting the opposite?

I have this issue because of my exchange server.

Ive never set up and exchange server on my phone. The only constant apps that should be auto syncing are gmail, calander and twitter, which is set to refresh once every 1 hour.

Same for me, battery life sucks lately.

Mokurex said:
Same for me, battery life sucks lately.
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Then there are people reporting that their battery life has increased after updating to froyo. In fact mine was ok at first, until i started using FRF83 onwards then it all started to go downhill. This morning i woke up with the battery at 44% when i last saw it, it was at 90% the night before. It drained that much overnight and its not supposed to happen!

Mine was very good since updating to froyo ( starting from first builds leaked). Its very good now too, better than before anyway. I used to run of juice by 9PM, now i have ~ 20% left with the same usage.
Check out what apps are consuming the battery, i got terrible batt life when i tried the droidx live wallpaper.

App usage are the usual stuff.
Display being the highest, followed by android system, then cell standby, phone idle, twitter, android OS, launcher pro..etc
something seems to be sucking up my battery and i dont know what

I'll be the first one, I guess - I blame the task killer. It's widely known that you shouldn't need a task killer, unless you have some rogue app.

EarthsiegeTA said:
I'll be the first one, I guess - I blame the task killer. It's widely known that you shouldn't need a task killer, unless you have some rogue app.
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But if your task killer is set to auto-kill on screen-off, even if various apps restart then that should only be in the first few minutes and shouldn't reduce the battery that much.
I have taskiller installed but only for manual killing of problem apps (a rare occurrence) and I have noticed poor battery life since moving to FRF85b - didn't notice anything of the sort in the Froyo versions before 85b though.

Well i just uninstalled task killer, i'll leave the phone running overnight again to test the battery again. But from the looks of it. It seems battery life has improved slightly, but it could be just me.
drewstiff said:
But if your task killer is set to auto-kill on screen-off, even if various apps restart then that should only be in the first few minutes and shouldn't reduce the battery that much.
I have taskiller installed but only for manual killing of problem apps (a rare occurrence) and I have noticed poor battery life since moving to FRF85b - didn't notice anything of the sort in the Froyo versions before 85b though.
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Yeah thats true. It shouldnt suck up that much battery cos it only kills apps once. It could be an issue with the task killer causing it to drain the battery, because after uninstalling it i think the battery lasts a little longer. But i'll leave it running overnight again to confirm.

My quick story:
- frf72 and earlier - about 12 hours battery life for me. Used task killers, 2 emails on push. WiFi, BT off. Also tried juicedefender and setCPU. They made my battery life even worse.
- frf82+ (now frf91). Read up on how Android manages tasks and power. Got rid of all the task managers, setCPU and JD. Only use OSMonitor every once in a while to see if any dumbass app using up CPU in wakelock. So far none.
- EVERYTHING is ON. Wifi, BT, GPS - always on. I never use 2G, it's always 3G/HSDPA. GMAIL on PUSH, Exchange PUSH or 10minutes (no difference in battery for me)
- After a 24-hour test (from which 8 hours were on standby at night) I lost 80% battery life, so 20% still remain.
My advice: uninstall anything like setCPU, JD or taskkillers. Let Android handle that. Install OSMonitor and make sure nothing's in wakelock. Wipe cache if you want. If you're not getting 18-20+ hours, perhaps time to calibrate ur battery.

Thanks for the tip, just installled OSmonitor. The interface is pretty messy! But at least i understand whats going on. So all i need to do is keep track of which apps are at the highest load?
Is it really necessary to kill unwanted apps (Twitter, goggles, gmail..etc) because they are taking up RAM to improve battery life while idling?

OR you could just take Paul's advice and not use a task killer. My money is on him =)
FAQ: Why You Shouldn’t Be Using a Task Killer with Android

Wow thats a very informative read! Thanks for the link. I too also thought that an unwanted running task means i need to kill it to free RAM in order to speed things up and improve battery life. Didnt know im actually doing it harm.
Looks like i'll ditch my task manager for good and have faith in the OS.

Using LauncherPro Beta? I think some battery issues have been traced back to the way LP is handling updating widgets right now. Hoping for an update to fix it soon.

Well guess what. I just used the phone for an entire day and left it on since last night. It dropped down to 25% when i got home and was about to replace the battery pack. So it looks like task manager was the cause of the problem.
Launcherpro doesnt seem to be affecting the battery life.

cr0wnest said:
Well guess what. I just used the phone for an entire day and left it on since last night. It dropped down to 25% when i got home and was about to replace the battery pack. So it looks like task manager was the cause of the problem.
Launcherpro doesnt seem to be affecting the battery life.
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Well it won't show up in the battery usage as affecting the battery. It has something to do with the widget updating not launcherpro. I removed BBC News, Beautiful Widgets and my Battery Info widget and my battery is now holding steady.
I'd be interested if you'd run an experiment, remove all updating widgets, notification widgets, etc and try again.

Battery Drain Drach 2.7

I have done every possible thing i could think of to stop my battery drain:
first i had automatic task killer installed but it seemed as though that may be causing the drain
then i installed UV kernel and uninstalled automatic task killer and i thought it was getting better but it is now doing the exact same thing as before... about 1% every 5 minutes...without much use
i have the latest radio baseband (2.42.01.04.27) installed, but my battery stats are:
cell standby: 49%
phone idle: 43%
display: 10%
health: good
now i switched back to using automatic task killer WITH the UV Kernel but it doesnt look promising as my battery was going 2% every 5 minutes.
I tried to use setCPU but got a little confused setting things up so if that helps could someone please help me with that?
Thanks in advance for any help i get...
-Brian-

This is exactly my situation. I've been looking for a couple days for a solution, as I've been seeing people getting over a day with no CPU manager, no ATK or anything of that nature. Have you actually seen a difference with Task Killer on?
Now I'm just curious what could possibly be running?

yeah with the task killer running it seems to die slightly quicker... at least with UV kernel... prior to UV kernel the ATK actually helped a slight bit. My battery life just gets worse and worse... yesterday i was using wireless tether and it actaully LOST battery while charging because it was so hot. i have no idea what could be killing it.

Shame, I guess if I can't get this solved I'll have to go back to a non-OC Fresh build. Don't get me wrong, I really like FreshROM but I like the AOSPs so much better. I'm thinking my phone just doesn't like to be OC'd and I don't know if I can do with 10 hours worth of battery with minimal usage.

there were 2 thread about this already http://forum.xda-developers.com/showthread.php?t=704155&highlight=battery+darchdroid
http://forum.xda-developers.com/showthread.php?t=711462&highlight=battery+darchdroid

yes there are multiple threads and EVERY thread leads to the same response
"try reflashing your battery stats"
people have tried that and i still getting IDLE and standby at the same number
I know I am. I have tried all the different suggestions. I'm going to try using handcent again and getting away from the stock messenger to see if that is what is making my phone stay on.

it isnt, ive used handcent and chompSMS and i still get the same results with both.

Simple solution, use a different rom.

buncha wise guys in q and a. seriously though, why?
Sent from my Hero CDMA using Tapatalk

A simple response, yes, but Darchdroid is by a large margin my favorite ROM and I'd really like to use it. Especially considering the fact that DarchROM will be the first 2.2 rom out, it'd be nice to find the source of the problem now.
I'm back to Fresh2.3.3 (non OC) and my battery life appears to be great again. I'm almost curious enough to find a non OC kernel I can use with Darchdroid so I can have acceptable battery life and the UI I'd like.

[Q] Background Apps and Battery Drain

Hi,
I have noticed on my SGS that there are always 10-12 background apps that are running... Although I have Advanced Task Killer installed... And also there is significant drain in the battery as well... I loose 3-4% in one hour (when the phone is idle)...
Is this normal ?
Is there any way to avoid the background apps to start automatically? Does these apps drain the battery?
Also, I am using Launcher Pro... Whether it can be the reason for the drain in the battery?
Is there anyway to reduce the battery drain?
P.S: The phone is rooted...
Thanks,
Guru
Samsung Galaxy S
Android 2.2
BaseBand: I9000DDJP2
Build: Froyo.DDJP6

stop using task killers.

3-4% isn't unusual, but task killers will make it worse.

Hmm... I have the same problem with Doc's Rom XWJS3+speedmod kernel.
Somethimes I get 2%/hour battery drain (which is normal for me) and other times I get mad 5%/hour battery drains.
When I got the 5%/h battery drain I checked Spare Parts, but it didn't show nothing unusual.
And I know Spare Parts and the usual suspects: Gallery 3D, Dialer, Fruit Ninja,...
Thx god phone reboot fixes the mad battery drain.
Too bad this isn't fixable because no app shows high battery usage in Spare Parts.
EDIT: I do not use Task Killers and yes I would also not recommend using them.

Thanks guys for the replies... I have disabled Advanced Task killer and now monitoring the battery drain...
Also, any idea if Launcher Pro consumes battery as well? Since I have kept it as my default launcher...
Thanks,
Guru

Yes I guess we are all in the same boat.
When I clear level 1 and 2 memory in the task manager, I get a note that 10+ apps have been stopped but I believe this is not the right thing to do.
Android OS seem to work this way.
I need to do some reading about it.
Can someone explain what are the disadvantages of using advanced task managers?

the stock task manager is fine.. its the other ones from the market that contribute to battery drain,, even tho they are made to decrease battery drain.... weird i know...
they are permanently checking the OS for running apps, and certain options like 'show notification message' or 'auto kill at screen off' means the app is running permanently.... even when you kill it. it just starts back up in a blink of an eye...
stick to the stock task killer as its no better / worse than the rest......

[Q] Any battery saving tips?

I turn off: auto-rotation, auto-backup, synchronize, data in the background, gps, disabled fast darmancy, no live wallpaper, auto britnes, at home i turn off mobile data, and when i go out i turn of my notification, im using super task killer to kill all the proces, but my not battery life is obout 18 hours with verry low ussage. Im using latest kingdroid rom with abys 4.2 kernel, when i try to install francos kernel o r speedmode kernel i get problem with screen, just goes off, any tips to save battery live ??

take a look at my post in here:
http://forum.xda-developers.com/showpost.php?p=23027417&postcount=7
Short answer: you'll find juicedefender will go a long way to saving your battery.
Some of the things you've set (disabling auto-rotate, using task killers) won't do anything to help your battery life.
As a general rule task killers aren't necessary under android - they may even HURT your battery life. If an app wants to run it will simply restart itself, using cpu cycles to run, then your task killer will kill it, and the cycle repeats itself. If an app is really causing a problem, just uninstall it.

sideways86 said:
Short answer: you'll find juicedefender will go a long way to saving your battery.
As a general rule task killers aren't necessary under android - they may even HURT your battery life.
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Click to collapse
I agree with the second part of the above post, but juice defender will NOT save your battery. In fact it might do just the opposite. Do some forum search and you'll see for yourself.

chasmodo said:
... juice defender will NOT save your battery. In fact it might do just the opposite...
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Click to collapse
I can confirm it myself.

Thought I'd jump in to this thread to add that I'm a user of juicedefender ultimate, and, properly set up, it makes a huge difference to my battery. Ymmv I suppose.
Sent from my GT-N7000 using xda premium

[Q] Captivate not holding charge, showing excessive system usage

Hi,
I have had the captivate for a while and it has been a trusty little phone. For past few months , the phone is not able to hold the charge. I have tried multiple roms, stock roms, and tried to do as much as I can. But still not able to keep the phone on for more than 6 hours from 100%. I bought a new battery and no difference has been noticed. I was just wondering what else could I look into. I have a Note 2, but I really love this phone and want it as a good reliable spare.
Thanks

Install the Better Battery Stats app and let it run for a day and then see what the apps says is eatin up ur battery.
Sent from my SAMSUNG-SGH-I747 using xda premium

I would highly recommend the "SLIM" Rom. (http://forum.xda-developers.com/showthread.php?t=2060386)
I've found that it's been extremely kind to my battery with its suite of inverted apps and generally inverted interface.
My battery running stock rom was dying in ~6 hours idling, very much like your situation. Running SLIM, I've seen battery life for ~1.5 days with light usage. Not a drastic improvement but it definitely helps.
I would also recommend grabbing "Gemini App Manager" and killing off some pesky background services that may be eating up at your resources/battery life. Be careful what you mess with, but you can change the startup for your services as well as fully disabling services. (Requires root)

ArchTyriel said:
I would highly recommend the "SLIM" Rom. (http://forum.xda-developers.com/showthread.php?t=2060386)
I've found that it's been extremely kind to my battery with its suite of inverted apps and generally inverted interface.
My battery running stock rom was dying in ~6 hours idling, very much like your situation. Running SLIM, I've seen battery life for ~1.5 days with light usage. Not a drastic improvement but it definitely helps.
I would also recommend grabbing "Gemini App Manager" and killing off some pesky background services that may be eating up at your resources/battery life. Be careful what you mess with, but you can change the startup for your services as well as fully disabling services. (Requires root)
Click to expand...
Click to collapse
His issue isn't coming from the ROM he's using. It's mostly a app draining his battery.
On a side note, app manager/killer don't actually give you more battery as the process simply restarts after being killed. Android itself kills w/e needs to be killed (without restarting them). Stop using it and you might actually see a improvement in battery life.

BWolf56 said:
His issue isn't coming from the ROM he's using. It's mostly a app draining his battery.
On a side note, app manager/killer don't actually give you more battery as the process simply restarts after being killed. Android itself kills w/e needs to be killed (without restarting them). Stop using it and you might actually see a improvement in battery life.
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Click to collapse
All ROMs are certainly not created equally so I was making a suggestion based on personal experience.
No I agree, with your original post that he needs to track down the app that is killing the battery but the manager I suggested configures the startup parameters of the app (should this app start on boot/can it restart itself/etc). I found when using it that my dropbox was constantly hanging around in the background and started on boot. It allows for some select tweaking of what exactly you want to be running and when it is allowed to start.

thanks guys, I have been trying to figure out myself whats keeping the phone on but no luck yet. its just saying brightness consuming more than 50% battery and the other 25% is os ans system.
I installed slim rom last night, so will try it out today and see how this fares.